LDAP authentication problem

I have two Exchange 2003 servers and Cisco UCM 6.1.2. Both servers are in the same domain. Cisco UCM can connect and authenticate to LDAP on one server but not the other. LDAP appears to be working on both servers and I can connect to port 389 with Apache Directory Studio. I can also connect with Telnet.

Ultimately I want to point Cisco UCM to the new server for LDAP.
KomickazeAsked:
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KomickazeConnect With a Mentor Author Commented:
LDAP was the least of my problems. The problem server has since been retired from the domain due to various other problems.
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compdigit44Commented:
From another client i.e your workstation are you able to bind to each 2k3 server using LDAP?
Are the security settings on your UCS servers the same?
Are you getting any errors?
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CoralonCommented:
Any ipsec configuration on either server?  It could be set up to only accept the UCM on one of them?  (long shot, but can't hurt to check).

Coralon
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compdigit44Commented:
Also you may want to make sure the switch the port the server is connected to is not using any type of port security ie. 802.1x
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KomickazeAuthor Commented:
None of the other answers were related to either the problem or the solution. The LDAP issue was just a small symptom of a much larger problem that led to the retirement of the server.
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